Second to the prolusion systems, canvas and upholstery can be one of the more expensive things on your boat. The real key to canvas longevity is like all things in life, maintenance! Keep your canvas clean of dust, dirt and environmental residue(bird droppings, and why do the gulls like to roost above my boat?) on a regular basis. Topside fabrics should be cleaned of any dirt buildup at regular intervals. Use a lukewarm solution of a gentle soap such as Woolite or Dawn with a